You might've noticed in the last photo, the driver's window was up. That's because it won't roll down.
About a week later, I got around to replacing the brake booster. On that same day, the passenger front window got stuck down. I've managed to get it rolled up, but the regulator is bent.
I've ordered 2 new regulators and a full set of brass rollers to fit into them. The plan is to also replace the lock springs and door speakers at the same time.